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BUF08821

現行

具整合式 2 組記憶體的 8 通道 Gamma 電壓產生器和 Vcom 校準器

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產品規格表

BUF08821

現行
產品規格表 立即訂購

產品詳細資料

Display type LCD unipolar IC integration Gamma buffer, VCOM Vin (min) (V) 9 Vin (max) (V) 20 Applications 13 to 21 inches, 21 inches and above, 7 inches or less, 7 to 13 inches Source driver voltage (min) (V) 9 Source driver voltage (max) (V) 20 Level shifter/scan driver (Ch) 0 Features Gamma buffer, I2C interface, VCOM or op amp Rating Catalog Operating temperature range (°C) -40 to 95
Display type LCD unipolar IC integration Gamma buffer, VCOM Vin (min) (V) 9 Vin (max) (V) 20 Applications 13 to 21 inches, 21 inches and above, 7 inches or less, 7 to 13 inches Source driver voltage (min) (V) 9 Source driver voltage (max) (V) 20 Level shifter/scan driver (Ch) 0 Features Gamma buffer, I2C interface, VCOM or op amp Rating Catalog Operating temperature range (°C) -40 to 95
HTSSOP (PWP) 20 41.6 mm² 6.5 x 6.4
  • 10-BIT RESOLUTION
  • 8-CHANNEL P-GAMMA
  • 1-CHANNEL P-VCOM
  • 16x REWRITABLE NONVOLATILE MEMORY
  • TWO INDEPENDENT PIN-SELECTABLE MEMORY BANKS
  • RAIL-TO-RAIL OUTPUT:
    300mV Minimum Swing-to-Rail (10mA)
    > 300mA Maximum IOUT
  • LOW SUPPLY CURRENT
  • SUPPLY VOLTAGE: 9V to 20V
  • DIGITAL SUPPLY: 2V to 5.5V
  • I2C INTERFACE: Supports 400kHz and 3.4MHz Clock Frequency
  • APPLICATIONS
    • TFT-LCD REFERENCE DRIVERS
  • 10-BIT RESOLUTION
  • 8-CHANNEL P-GAMMA
  • 1-CHANNEL P-VCOM
  • 16x REWRITABLE NONVOLATILE MEMORY
  • TWO INDEPENDENT PIN-SELECTABLE MEMORY BANKS
  • RAIL-TO-RAIL OUTPUT:
    300mV Minimum Swing-to-Rail (10mA)
    > 300mA Maximum IOUT
  • LOW SUPPLY CURRENT
  • SUPPLY VOLTAGE: 9V to 20V
  • DIGITAL SUPPLY: 2V to 5.5V
  • I2C INTERFACE: Supports 400kHz and 3.4MHz Clock Frequency
  • APPLICATIONS
    • TFT-LCD REFERENCE DRIVERS

The BUF08821 offers eight programmable gamma channels plus one programmable VCOM channel.

The final gamma and VCOM values can be stored in the on-chip, nonvolatile memory. To allow for programming errors or liquid crystal display (LCD) panel rework, the BUF08821 supports up to 16 write operations to the on-chip memory.

The BUF08821 has two separate memory banks, allowing simultaneous storage of two different gamma curves to facilitate switching between gamma curves.

All gamma and VCOM channels offer a rail-to-rail output that typically swings to within 150mV of either supply rail with a 10mA load. All channels are programmed using an I2C interface that supports standard operations up to 400kHz and high-speed data transfers up to 3.4MHz.

The BUF08821 is manufactured using Texas Instruments’ proprietary, state-of-the-art, high-voltage CMOS process. This process offers very dense logic and HIGH supply voltage operation of up to 20V. The BUF08821 is offered in a HTSSOP-20 PowerPAD package. It is specified from –40°C to +85°C.

The BUF08821 offers eight programmable gamma channels plus one programmable VCOM channel.

The final gamma and VCOM values can be stored in the on-chip, nonvolatile memory. To allow for programming errors or liquid crystal display (LCD) panel rework, the BUF08821 supports up to 16 write operations to the on-chip memory.

The BUF08821 has two separate memory banks, allowing simultaneous storage of two different gamma curves to facilitate switching between gamma curves.

All gamma and VCOM channels offer a rail-to-rail output that typically swings to within 150mV of either supply rail with a 10mA load. All channels are programmed using an I2C interface that supports standard operations up to 400kHz and high-speed data transfers up to 3.4MHz.

The BUF08821 is manufactured using Texas Instruments’ proprietary, state-of-the-art, high-voltage CMOS process. This process offers very dense logic and HIGH supply voltage operation of up to 20V. The BUF08821 is offered in a HTSSOP-20 PowerPAD package. It is specified from –40°C to +85°C.
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技術文件

star =TI 所選的此產品重要文件
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類型 標題 日期
* Data sheet Prog. Gamma-Voltage Generator & Vcom Calibrator w/ Integrated 2-Bank Memory datasheet (Rev. D) 2011年 7月 12日
EVM User's guide BUF08821EVM-USB User's Guide (Rev. A) 2016年 8月 2日
Application note Driving Capacitive Loads with Gamma Buffers 2012年 11月 20日
EVM User's guide BUF08821EVM User's Guide 2008年 9月 24日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

支援軟體

SBOC269 — BUF08821EVM Software

支援產品和硬體

支援產品和硬體

產品
LCD 及 OLED 顯示器電源和驅動器
BUF08821 — 具整合式 2 組記憶體的 8 通道 Gamma 電壓產生器和 Vcom 校準器
下載
支援軟體

SBOC403 — BUF08821EVM-USB Software

支援產品和硬體

支援產品和硬體

產品
LCD 及 OLED 顯示器電源和驅動器
BUF08821 — 具整合式 2 組記憶體的 8 通道 Gamma 電壓產生器和 Vcom 校準器
下載
支援軟體

SBOC404 — BUF08821EVM-USB Source Code

支援產品和硬體

支援產品和硬體

產品
LCD 及 OLED 顯示器電源和驅動器
BUF08821 — 具整合式 2 組記憶體的 8 通道 Gamma 電壓產生器和 Vcom 校準器
下載
模擬型號

Gamma Buffer I2C IBIS Model

SBOM409.ZIP (39 KB) - IBIS Model
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模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
HTSSOP (PWP) 20 Ultra Librarian
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